2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Author: Kristian Høgsberg <krh@bitplanet.net>
31 #include "extensions.h"
36 #include "texcompress.h"
37 #include "framebuffer.h"
38 #include "samplerobj.h"
41 /* This is a table driven implemetation of the glGet*v() functions.
42 * The basic idea is that most getters just look up an int somewhere
43 * in struct gl_context and then convert it to a bool or float according to
44 * which of glGetIntegerv() glGetBooleanv() etc is being called.
45 * Instead of generating code to do this, we can just record the enum
46 * value and the offset into struct gl_context in an array of structs. Then
47 * in glGet*(), we lookup the struct for the enum in question, and use
48 * the offset to get the int we need.
50 * Sometimes we need to look up a float, a boolean, a bit in a
51 * bitfield, a matrix or other types instead, so we need to track the
52 * type of the value in struct gl_context. And sometimes the value isn't in
53 * struct gl_context but in the drawbuffer, the array object, current texture
54 * unit, or maybe it's a computed value. So we need to also track
55 * where or how to find the value. Finally, we sometimes need to
56 * check that one of a number of extensions are enabled, the GL
57 * version or flush or call _mesa_update_state(). This is done by
58 * attaching optional extra information to the value description
59 * struct, it's sort of like an array of opcodes that describe extra
62 * Putting all this together we end up with struct value_desc below,
63 * and with a couple of macros to help, the table of struct value_desc
64 * is about as concise as the specification in the old python script.
67 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
68 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
69 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
70 (GLint) ((F) * 65536.0f) )
72 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
73 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
74 ((I) < SHRT_MIN) ? INT_MIN : \
75 (GLint) ((I) * 65536) )
77 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
78 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
80 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
81 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
82 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
83 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
85 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
86 #define ENUM_TO_FIXED(E) (E)
121 enum value_location
{
139 EXTRA_NEW_FRAG_CLAMP
,
140 EXTRA_VALID_DRAW_BUFFER
,
141 EXTRA_VALID_TEXTURE_UNIT
,
142 EXTRA_VALID_CLIP_DISTANCE
,
148 #define NO_EXTRA NULL
153 GLubyte location
; /**< enum value_location */
154 GLubyte type
; /**< enum value_type */
161 GLfloat value_float_4
[4];
162 GLmatrix
*value_matrix
;
164 GLint value_int_4
[4];
168 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
172 GLboolean value_bool
;
175 #define BUFFER_FIELD(field, type) \
176 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
177 #define CONTEXT_FIELD(field, type) \
178 LOC_CONTEXT, type, offsetof(struct gl_context, field)
179 #define ARRAY_FIELD(field, type) \
180 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
181 #undef CONST /* already defined through windows.h */
182 #define CONST(value) \
183 LOC_CONTEXT, TYPE_CONST, value
185 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
186 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
187 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
189 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
190 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
191 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
192 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
193 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
194 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
195 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
196 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
197 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
198 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
199 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
200 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
201 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
202 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
203 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
204 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
205 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
206 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
207 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
208 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
210 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
211 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
212 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
215 offsetof(struct gl_extensions, f)
217 #define EXTRA_EXT(e) \
218 static const int extra_##e[] = { \
222 #define EXTRA_EXT2(e1, e2) \
223 static const int extra_##e1##_##e2[] = { \
224 EXT(e1), EXT(e2), EXTRA_END \
227 /* The 'extra' mechanism is a way to specify extra checks (such as
228 * extensions or specific gl versions) or actions (flush current, new
229 * buffers) that we need to do before looking up an enum. We need to
230 * declare them all up front so we can refer to them in the value_desc
233 * Each EXTRA_ will be executed. For EXTRA_* enums of extensions and API
234 * versions, listing multiple ones in an array means an error will be thrown
235 * only if none of them are available. If you need to check for "AND"
236 * behavior, you would need to make a custom EXTRA_ enum.
239 static const int extra_new_buffers
[] = {
244 static const int extra_new_frag_clamp
[] = {
245 EXTRA_NEW_FRAG_CLAMP
,
249 static const int extra_valid_draw_buffer
[] = {
250 EXTRA_VALID_DRAW_BUFFER
,
254 static const int extra_valid_texture_unit
[] = {
255 EXTRA_VALID_TEXTURE_UNIT
,
259 static const int extra_valid_clip_distance
[] = {
260 EXTRA_VALID_CLIP_DISTANCE
,
264 static const int extra_flush_current_valid_texture_unit
[] = {
266 EXTRA_VALID_TEXTURE_UNIT
,
270 static const int extra_flush_current
[] = {
275 static const int extra_EXT_secondary_color_flush_current
[] = {
276 EXT(EXT_secondary_color
),
281 static const int extra_EXT_fog_coord_flush_current
[] = {
287 static const int extra_EXT_texture_integer
[] = {
288 EXT(EXT_texture_integer
),
292 static const int extra_EXT_texture_integer_and_new_buffers
[] = {
293 EXT(EXT_texture_integer
),
298 static const int extra_GLSL_130_es3
[] = {
304 static const int extra_texture_buffer_object
[] = {
307 EXT(ARB_texture_buffer_object
),
311 static const int extra_ARB_transform_feedback2_api_es3
[] = {
312 EXT(ARB_transform_feedback2
),
317 static const int extra_ARB_uniform_buffer_object_and_geometry_shader
[] = {
322 static const int extra_ARB_ES2_compatibility_api_es2
[] = {
323 EXT(ARB_ES2_compatibility
),
328 static const int extra_ARB_ES3_compatibility_api_es3
[] = {
329 EXT(ARB_ES3_compatibility
),
334 static const int extra_EXT_framebuffer_sRGB_and_new_buffers
[] = {
335 EXT(EXT_framebuffer_sRGB
),
340 static const int extra_MESA_texture_array_es3
[] = {
341 EXT(MESA_texture_array
),
346 EXTRA_EXT(ARB_texture_cube_map
);
347 EXTRA_EXT(MESA_texture_array
);
348 EXTRA_EXT2(EXT_secondary_color
, ARB_vertex_program
);
349 EXTRA_EXT(EXT_secondary_color
);
350 EXTRA_EXT(EXT_fog_coord
);
351 EXTRA_EXT(NV_fog_distance
);
352 EXTRA_EXT(EXT_texture_filter_anisotropic
);
353 EXTRA_EXT(NV_point_sprite
);
354 EXTRA_EXT(NV_texture_rectangle
);
355 EXTRA_EXT(EXT_stencil_two_side
);
356 EXTRA_EXT(EXT_depth_bounds_test
);
357 EXTRA_EXT(ARB_depth_clamp
);
358 EXTRA_EXT(ATI_fragment_shader
);
359 EXTRA_EXT(EXT_framebuffer_blit
);
360 EXTRA_EXT(ARB_shader_objects
);
361 EXTRA_EXT(EXT_provoking_vertex
);
362 EXTRA_EXT(ARB_fragment_shader
);
363 EXTRA_EXT(ARB_fragment_program
);
364 EXTRA_EXT2(ARB_framebuffer_object
, EXT_framebuffer_multisample
);
365 EXTRA_EXT(EXT_framebuffer_object
);
366 EXTRA_EXT(ARB_seamless_cube_map
);
368 EXTRA_EXT(ARB_vertex_shader
);
369 EXTRA_EXT(EXT_transform_feedback
);
370 EXTRA_EXT(ARB_transform_feedback3
);
371 EXTRA_EXT(EXT_pixel_buffer_object
);
372 EXTRA_EXT(ARB_vertex_program
);
373 EXTRA_EXT2(NV_point_sprite
, ARB_point_sprite
);
374 EXTRA_EXT2(ARB_vertex_program
, ARB_fragment_program
);
375 EXTRA_EXT(ARB_geometry_shader4
);
376 EXTRA_EXT(ARB_color_buffer_float
);
377 EXTRA_EXT(EXT_framebuffer_sRGB
);
378 EXTRA_EXT(OES_EGL_image_external
);
379 EXTRA_EXT(ARB_blend_func_extended
);
380 EXTRA_EXT(ARB_uniform_buffer_object
);
381 EXTRA_EXT(ARB_timer_query
);
382 EXTRA_EXT(ARB_map_buffer_alignment
);
383 EXTRA_EXT(ARB_texture_cube_map_array
);
384 EXTRA_EXT(ARB_texture_buffer_range
);
385 EXTRA_EXT(ARB_texture_multisample
);
388 extra_ARB_color_buffer_float_or_glcore
[] = {
389 EXT(ARB_color_buffer_float
),
395 extra_NV_primitive_restart
[] = {
396 EXT(NV_primitive_restart
),
400 static const int extra_version_30
[] = { EXTRA_VERSION_30
, EXTRA_END
};
401 static const int extra_version_31
[] = { EXTRA_VERSION_31
, EXTRA_END
};
402 static const int extra_version_32
[] = { EXTRA_VERSION_32
, EXTRA_END
};
404 static const int extra_gl30_es3
[] = {
410 static const int extra_gl32_es3
[] = {
417 extra_ARB_vertex_program_api_es2
[] = {
418 EXT(ARB_vertex_program
),
423 /* The ReadBuffer get token is valid under either full GL or under
424 * GLES2 if the NV_read_buffer extension is available. */
426 extra_NV_read_buffer_api_gl
[] = {
432 static const int extra_core_ARB_color_buffer_float_and_new_buffers
[] = {
434 EXT(ARB_color_buffer_float
),
439 /* This is the big table describing all the enums we accept in
440 * glGet*v(). The table is partitioned into six parts: enums
441 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
442 * between OpenGL and GLES, enums exclusive to GLES, etc for the
443 * remaining combinations. To look up the enums valid in a given API
444 * we will use a hash table specific to that API. These tables are in
445 * turn generated at build time and included through get_hash.h.
448 #include "get_hash.h"
450 /* All we need now is a way to look up the value struct from the enum.
451 * The code generated by gcc for the old generated big switch
452 * statement is a big, balanced, open coded if/else tree, essentially
453 * an unrolled binary search. It would be natural to sort the new
454 * enum table and use bsearch(), but we will use a read-only hash
455 * table instead. bsearch() has a nice guaranteed worst case
456 * performance, but we're also guaranteed to hit that worst case
457 * (log2(n) iterations) for about half the enums. Instead, using an
458 * open addressing hash table, we can find the enum on the first try
459 * for 80% of the enums, 1 collision for 10% and never more than 5
460 * collisions for any enum (typical numbers). And the code is very
461 * simple, even though it feels a little magic. */
465 print_table_stats(int api
)
467 int i
, j
, collisions
[11], count
, hash
, mask
;
468 const struct value_desc
*d
;
469 const char *api_names
[] = {
470 [API_OPENGL_COMPAT
] = "GL",
471 [API_OPENGL_CORE
] = "GL_CORE",
472 [API_OPENGLES
] = "GLES",
473 [API_OPENGLES2
] = "GLES2",
475 const char *api_name
;
477 api_name
= api
< Elements(api_names
) ? api_names
[api
] : "N/A";
479 mask
= Elements(table(api
)) - 1;
480 memset(collisions
, 0, sizeof collisions
);
482 for (i
= 0; i
< Elements(table(api
)); i
++) {
486 d
= &values
[table(api
)[i
]];
487 hash
= (d
->pname
* prime_factor
);
490 if (values
[table(api
)[hash
& mask
]].pname
== d
->pname
)
502 printf("number of enums for %s: %d (total %ld)\n",
503 api_name
, count
, Elements(values
));
504 for (i
= 0; i
< Elements(collisions
) - 1; i
++)
505 if (collisions
[i
] > 0)
506 printf(" %d enums with %d %scollisions\n",
507 collisions
[i
], i
, i
== 10 ? "or more " : "");
512 * Initialize the enum hash for a given API
514 * This is called from one_time_init() to insert the enum values that
515 * are valid for the API in question into the enum hash table.
517 * \param the current context, for determining the API in question
519 void _mesa_init_get_hash(struct gl_context
*ctx
)
527 * Handle irregular enums
529 * Some values don't conform to the "well-known type at context
530 * pointer + offset" pattern, so we have this function to catch all
531 * the corner cases. Typically, it's a computed value or a one-off
532 * pointer to a custom struct or something.
534 * In this case we can't return a pointer to the value, so we'll have
535 * to use the temporary variable 'v' declared back in the calling
536 * glGet*v() function to store the result.
538 * \param ctx the current context
539 * \param d the struct value_desc that describes the enum
540 * \param v pointer to the tmp declared in the calling glGet*v() function
543 find_custom_value(struct gl_context
*ctx
, const struct value_desc
*d
, union value
*v
)
545 struct gl_buffer_object
**buffer_obj
;
546 struct gl_client_array
*array
;
550 case GL_MAJOR_VERSION
:
551 v
->value_int
= ctx
->Version
/ 10;
553 case GL_MINOR_VERSION
:
554 v
->value_int
= ctx
->Version
% 10;
560 case GL_TEXTURE_1D_ARRAY_EXT
:
561 case GL_TEXTURE_2D_ARRAY_EXT
:
562 case GL_TEXTURE_CUBE_MAP_ARB
:
563 case GL_TEXTURE_RECTANGLE_NV
:
564 case GL_TEXTURE_EXTERNAL_OES
:
565 v
->value_bool
= _mesa_IsEnabled(d
->pname
);
568 case GL_LINE_STIPPLE_PATTERN
:
569 /* This is the only GLushort, special case it here by promoting
570 * to an int rather than introducing a new type. */
571 v
->value_int
= ctx
->Line
.StipplePattern
;
574 case GL_CURRENT_RASTER_TEXTURE_COORDS
:
575 unit
= ctx
->Texture
.CurrentUnit
;
576 v
->value_float_4
[0] = ctx
->Current
.RasterTexCoords
[unit
][0];
577 v
->value_float_4
[1] = ctx
->Current
.RasterTexCoords
[unit
][1];
578 v
->value_float_4
[2] = ctx
->Current
.RasterTexCoords
[unit
][2];
579 v
->value_float_4
[3] = ctx
->Current
.RasterTexCoords
[unit
][3];
582 case GL_CURRENT_TEXTURE_COORDS
:
583 unit
= ctx
->Texture
.CurrentUnit
;
584 v
->value_float_4
[0] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][0];
585 v
->value_float_4
[1] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][1];
586 v
->value_float_4
[2] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][2];
587 v
->value_float_4
[3] = ctx
->Current
.Attrib
[VERT_ATTRIB_TEX0
+ unit
][3];
590 case GL_COLOR_WRITEMASK
:
591 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[0][RCOMP
] ? 1 : 0;
592 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[0][GCOMP
] ? 1 : 0;
593 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[0][BCOMP
] ? 1 : 0;
594 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[0][ACOMP
] ? 1 : 0;
598 v
->value_bool
= ctx
->Current
.Attrib
[VERT_ATTRIB_EDGEFLAG
][0] == 1.0;
602 v
->value_enum
= ctx
->ReadBuffer
->ColorReadBuffer
;
605 case GL_MAP2_GRID_DOMAIN
:
606 v
->value_float_4
[0] = ctx
->Eval
.MapGrid2u1
;
607 v
->value_float_4
[1] = ctx
->Eval
.MapGrid2u2
;
608 v
->value_float_4
[2] = ctx
->Eval
.MapGrid2v1
;
609 v
->value_float_4
[3] = ctx
->Eval
.MapGrid2v2
;
612 case GL_TEXTURE_STACK_DEPTH
:
613 unit
= ctx
->Texture
.CurrentUnit
;
614 v
->value_int
= ctx
->TextureMatrixStack
[unit
].Depth
+ 1;
616 case GL_TEXTURE_MATRIX
:
617 unit
= ctx
->Texture
.CurrentUnit
;
618 v
->value_matrix
= ctx
->TextureMatrixStack
[unit
].Top
;
621 case GL_TEXTURE_COORD_ARRAY
:
622 case GL_TEXTURE_COORD_ARRAY_SIZE
:
623 case GL_TEXTURE_COORD_ARRAY_TYPE
:
624 case GL_TEXTURE_COORD_ARRAY_STRIDE
:
625 array
= &ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)];
626 v
->value_int
= *(GLuint
*) ((char *) array
+ d
->offset
);
629 case GL_ACTIVE_TEXTURE_ARB
:
630 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Texture
.CurrentUnit
;
632 case GL_CLIENT_ACTIVE_TEXTURE_ARB
:
633 v
->value_int
= GL_TEXTURE0_ARB
+ ctx
->Array
.ActiveTexture
;
636 case GL_MODELVIEW_STACK_DEPTH
:
637 case GL_PROJECTION_STACK_DEPTH
:
638 v
->value_int
= *(GLint
*) ((char *) ctx
+ d
->offset
) + 1;
641 case GL_MAX_TEXTURE_SIZE
:
642 case GL_MAX_3D_TEXTURE_SIZE
:
643 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB
:
644 p
= (GLuint
*) ((char *) ctx
+ d
->offset
);
645 v
->value_int
= 1 << (*p
- 1);
649 v
->value_int_4
[0] = ctx
->Scissor
.X
;
650 v
->value_int_4
[1] = ctx
->Scissor
.Y
;
651 v
->value_int_4
[2] = ctx
->Scissor
.Width
;
652 v
->value_int_4
[3] = ctx
->Scissor
.Height
;
657 ctx
->ListState
.CurrentList
? ctx
->ListState
.CurrentList
->Name
: 0;
660 if (!ctx
->CompileFlag
)
662 else if (ctx
->ExecuteFlag
)
663 v
->value_enum
= GL_COMPILE_AND_EXECUTE
;
665 v
->value_enum
= GL_COMPILE
;
669 v
->value_int_4
[0] = ctx
->Viewport
.X
;
670 v
->value_int_4
[1] = ctx
->Viewport
.Y
;
671 v
->value_int_4
[2] = ctx
->Viewport
.Width
;
672 v
->value_int_4
[3] = ctx
->Viewport
.Height
;
675 case GL_ACTIVE_STENCIL_FACE_EXT
:
676 v
->value_enum
= ctx
->Stencil
.ActiveFace
? GL_BACK
: GL_FRONT
;
679 case GL_STENCIL_FAIL
:
680 v
->value_enum
= ctx
->Stencil
.FailFunc
[ctx
->Stencil
.ActiveFace
];
682 case GL_STENCIL_FUNC
:
683 v
->value_enum
= ctx
->Stencil
.Function
[ctx
->Stencil
.ActiveFace
];
685 case GL_STENCIL_PASS_DEPTH_FAIL
:
686 v
->value_enum
= ctx
->Stencil
.ZFailFunc
[ctx
->Stencil
.ActiveFace
];
688 case GL_STENCIL_PASS_DEPTH_PASS
:
689 v
->value_enum
= ctx
->Stencil
.ZPassFunc
[ctx
->Stencil
.ActiveFace
];
692 v
->value_int
= _mesa_get_stencil_ref(ctx
, ctx
->Stencil
.ActiveFace
);
694 case GL_STENCIL_BACK_REF
:
695 v
->value_int
= _mesa_get_stencil_ref(ctx
, 1);
697 case GL_STENCIL_VALUE_MASK
:
698 v
->value_int
= ctx
->Stencil
.ValueMask
[ctx
->Stencil
.ActiveFace
];
700 case GL_STENCIL_WRITEMASK
:
701 v
->value_int
= ctx
->Stencil
.WriteMask
[ctx
->Stencil
.ActiveFace
];
704 case GL_NUM_EXTENSIONS
:
705 v
->value_int
= _mesa_get_extension_count(ctx
);
708 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
:
709 v
->value_int
= _mesa_get_color_read_type(ctx
);
711 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES
:
712 v
->value_int
= _mesa_get_color_read_format(ctx
);
715 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB
:
716 v
->value_int
= ctx
->CurrentStack
->Depth
+ 1;
718 case GL_CURRENT_MATRIX_ARB
:
719 case GL_TRANSPOSE_CURRENT_MATRIX_ARB
:
720 v
->value_matrix
= ctx
->CurrentStack
->Top
;
723 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB
:
724 v
->value_int
= _mesa_get_compressed_formats(ctx
, NULL
);
726 case GL_COMPRESSED_TEXTURE_FORMATS_ARB
:
728 _mesa_get_compressed_formats(ctx
, v
->value_int_n
.ints
);
729 ASSERT(v
->value_int_n
.n
<= 100);
732 case GL_MAX_VARYING_FLOATS_ARB
:
733 case GL_MAX_FRAGMENT_INPUT_COMPONENTS
:
734 v
->value_int
= ctx
->Const
.MaxVarying
* 4;
737 /* Various object names */
739 case GL_TEXTURE_BINDING_1D
:
740 case GL_TEXTURE_BINDING_2D
:
741 case GL_TEXTURE_BINDING_3D
:
742 case GL_TEXTURE_BINDING_1D_ARRAY_EXT
:
743 case GL_TEXTURE_BINDING_2D_ARRAY_EXT
:
744 case GL_TEXTURE_BINDING_CUBE_MAP_ARB
:
745 case GL_TEXTURE_BINDING_RECTANGLE_NV
:
746 case GL_TEXTURE_BINDING_EXTERNAL_OES
:
747 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY
:
748 case GL_TEXTURE_BINDING_2D_MULTISAMPLE
:
749 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY
:
750 unit
= ctx
->Texture
.CurrentUnit
;
752 ctx
->Texture
.Unit
[unit
].CurrentTex
[d
->offset
]->Name
;
755 /* GL_ARB_vertex_buffer_object */
756 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB
:
757 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB
:
758 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB
:
759 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB
:
760 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB
:
761 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB
:
762 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB
:
763 buffer_obj
= (struct gl_buffer_object
**)
764 ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
765 v
->value_int
= (*buffer_obj
)->Name
;
767 case GL_ARRAY_BUFFER_BINDING_ARB
:
768 v
->value_int
= ctx
->Array
.ArrayBufferObj
->Name
;
770 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB
:
772 ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].BufferObj
->Name
;
774 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB
:
775 v
->value_int
= ctx
->Array
.ArrayObj
->ElementArrayBufferObj
->Name
;
778 /* ARB_copy_buffer */
779 case GL_COPY_READ_BUFFER
:
780 v
->value_int
= ctx
->CopyReadBuffer
->Name
;
782 case GL_COPY_WRITE_BUFFER
:
783 v
->value_int
= ctx
->CopyWriteBuffer
->Name
;
786 case GL_PIXEL_PACK_BUFFER_BINDING_EXT
:
787 v
->value_int
= ctx
->Pack
.BufferObj
->Name
;
789 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT
:
790 v
->value_int
= ctx
->Unpack
.BufferObj
->Name
;
792 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
793 v
->value_int
= ctx
->TransformFeedback
.CurrentBuffer
->Name
;
795 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED
:
796 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Paused
;
798 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE
:
799 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Active
;
801 case GL_TRANSFORM_FEEDBACK_BINDING
:
802 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->Name
;
804 case GL_CURRENT_PROGRAM
:
806 ctx
->Shader
.ActiveProgram
? ctx
->Shader
.ActiveProgram
->Name
: 0;
808 case GL_READ_FRAMEBUFFER_BINDING_EXT
:
809 v
->value_int
= ctx
->ReadBuffer
->Name
;
811 case GL_RENDERBUFFER_BINDING_EXT
:
813 ctx
->CurrentRenderbuffer
? ctx
->CurrentRenderbuffer
->Name
: 0;
815 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES
:
816 v
->value_int
= ctx
->Array
.ArrayObj
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].BufferObj
->Name
;
820 if (_mesa_get_clamp_fragment_color(ctx
))
821 COPY_4FV(v
->value_float_4
, ctx
->Fog
.Color
);
823 COPY_4FV(v
->value_float_4
, ctx
->Fog
.ColorUnclamped
);
825 case GL_COLOR_CLEAR_VALUE
:
826 if (_mesa_get_clamp_fragment_color(ctx
)) {
827 v
->value_float_4
[0] = CLAMP(ctx
->Color
.ClearColor
.f
[0], 0.0F
, 1.0F
);
828 v
->value_float_4
[1] = CLAMP(ctx
->Color
.ClearColor
.f
[1], 0.0F
, 1.0F
);
829 v
->value_float_4
[2] = CLAMP(ctx
->Color
.ClearColor
.f
[2], 0.0F
, 1.0F
);
830 v
->value_float_4
[3] = CLAMP(ctx
->Color
.ClearColor
.f
[3], 0.0F
, 1.0F
);
832 COPY_4FV(v
->value_float_4
, ctx
->Color
.ClearColor
.f
);
834 case GL_BLEND_COLOR_EXT
:
835 if (_mesa_get_clamp_fragment_color(ctx
))
836 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColor
);
838 COPY_4FV(v
->value_float_4
, ctx
->Color
.BlendColorUnclamped
);
840 case GL_ALPHA_TEST_REF
:
841 if (_mesa_get_clamp_fragment_color(ctx
))
842 v
->value_float
= ctx
->Color
.AlphaRef
;
844 v
->value_float
= ctx
->Color
.AlphaRefUnclamped
;
846 case GL_MAX_VERTEX_UNIFORM_VECTORS
:
847 v
->value_int
= ctx
->Const
.VertexProgram
.MaxUniformComponents
/ 4;
850 case GL_MAX_FRAGMENT_UNIFORM_VECTORS
:
851 v
->value_int
= ctx
->Const
.FragmentProgram
.MaxUniformComponents
/ 4;
854 /* GL_ARB_texture_buffer_object */
855 case GL_TEXTURE_BUFFER_ARB
:
856 v
->value_int
= ctx
->Texture
.BufferObject
->Name
;
858 case GL_TEXTURE_BINDING_BUFFER_ARB
:
859 unit
= ctx
->Texture
.CurrentUnit
;
861 ctx
->Texture
.Unit
[unit
].CurrentTex
[TEXTURE_BUFFER_INDEX
]->Name
;
863 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB
:
865 struct gl_buffer_object
*buf
=
866 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
867 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObject
;
868 v
->value_int
= buf
? buf
->Name
: 0;
871 case GL_TEXTURE_BUFFER_FORMAT_ARB
:
872 v
->value_int
= ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
]
873 .CurrentTex
[TEXTURE_BUFFER_INDEX
]->BufferObjectFormat
;
876 /* GL_ARB_sampler_objects */
877 case GL_SAMPLER_BINDING
:
879 struct gl_sampler_object
*samp
=
880 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].Sampler
;
883 * The sampler object may have been deleted on another context,
884 * so we try to lookup the sampler object before returning its Name.
886 if (samp
&& _mesa_lookup_samplerobj(ctx
, samp
->Name
)) {
887 v
->value_int
= samp
->Name
;
893 /* GL_ARB_uniform_buffer_object */
894 case GL_UNIFORM_BUFFER_BINDING
:
895 v
->value_int
= ctx
->UniformBuffer
->Name
;
897 /* GL_ARB_timer_query */
899 if (ctx
->Driver
.GetTimestamp
) {
900 v
->value_int64
= ctx
->Driver
.GetTimestamp(ctx
);
903 _mesa_problem(ctx
, "driver doesn't implement GetTimestamp");
910 * Check extra constraints on a struct value_desc descriptor
912 * If a struct value_desc has a non-NULL extra pointer, it means that
913 * there are a number of extra constraints to check or actions to
914 * perform. The extras is just an integer array where each integer
915 * encode different constraints or actions.
917 * \param ctx current context
918 * \param func name of calling glGet*v() function for error reporting
919 * \param d the struct value_desc that has the extra constraints
921 * \return GL_FALSE if all of the constraints were not satisfied,
925 check_extra(struct gl_context
*ctx
, const char *func
, const struct value_desc
*d
)
927 const GLuint version
= ctx
->Version
;
928 GLboolean api_check
= GL_FALSE
;
929 GLboolean api_found
= GL_FALSE
;
932 for (e
= d
->extra
; *e
!= EXTRA_END
; e
++) {
934 case EXTRA_VERSION_30
:
939 case EXTRA_VERSION_31
:
944 case EXTRA_VERSION_32
:
949 case EXTRA_NEW_FRAG_CLAMP
:
950 if (ctx
->NewState
& (_NEW_BUFFERS
| _NEW_FRAG_CLAMP
))
951 _mesa_update_state(ctx
);
955 if (ctx
->API
== API_OPENGLES2
)
960 if (_mesa_is_gles3(ctx
))
965 if (_mesa_is_desktop_gl(ctx
))
968 case EXTRA_API_GL_CORE
:
970 if (ctx
->API
== API_OPENGL_CORE
)
973 case EXTRA_NEW_BUFFERS
:
974 if (ctx
->NewState
& _NEW_BUFFERS
)
975 _mesa_update_state(ctx
);
977 case EXTRA_FLUSH_CURRENT
:
978 FLUSH_CURRENT(ctx
, 0);
980 case EXTRA_VALID_DRAW_BUFFER
:
981 if (d
->pname
- GL_DRAW_BUFFER0_ARB
>= ctx
->Const
.MaxDrawBuffers
) {
982 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(draw buffer %u)",
983 func
, d
->pname
- GL_DRAW_BUFFER0_ARB
);
987 case EXTRA_VALID_TEXTURE_UNIT
:
988 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
989 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture %u)",
990 func
, ctx
->Texture
.CurrentUnit
);
994 case EXTRA_VALID_CLIP_DISTANCE
:
995 if (d
->pname
- GL_CLIP_DISTANCE0
>= ctx
->Const
.MaxClipPlanes
) {
996 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(clip distance %u)",
997 func
, d
->pname
- GL_CLIP_DISTANCE0
);
1001 case EXTRA_GLSL_130
:
1002 api_check
= GL_TRUE
;
1003 if (ctx
->Const
.GLSLVersion
>= 130)
1004 api_found
= GL_TRUE
;
1006 case EXTRA_EXT_UBO_GS4
:
1007 api_check
= GL_TRUE
;
1008 api_found
= (ctx
->Extensions
.ARB_uniform_buffer_object
&&
1009 ctx
->Extensions
.ARB_geometry_shader4
);
1013 default: /* *e is a offset into the extension struct */
1014 api_check
= GL_TRUE
;
1015 if (*(GLboolean
*) ((char *) &ctx
->Extensions
+ *e
))
1016 api_found
= GL_TRUE
;
1021 if (api_check
&& !api_found
) {
1022 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1023 _mesa_lookup_enum_by_nr(d
->pname
));
1030 static const struct value_desc error_value
=
1031 { 0, 0, TYPE_INVALID
, NO_OFFSET
, NO_EXTRA
};
1034 * Find the struct value_desc corresponding to the enum 'pname'.
1036 * We hash the enum value to get an index into the 'table' array,
1037 * which holds the index in the 'values' array of struct value_desc.
1038 * Once we've found the entry, we do the extra checks, if any, then
1039 * look up the value and return a pointer to it.
1041 * If the value has to be computed (for example, it's the result of a
1042 * function call or we need to add 1 to it), we use the tmp 'v' to
1045 * \param func name of glGet*v() func for error reporting
1046 * \param pname the enum value we're looking up
1047 * \param p is were we return the pointer to the value
1048 * \param v a tmp union value variable in the calling glGet*v() function
1050 * \return the struct value_desc corresponding to the enum or a struct
1051 * value_desc of TYPE_INVALID if not found. This lets the calling
1052 * glGet*v() function jump right into a switch statement and
1053 * handle errors there instead of having to check for NULL.
1055 static const struct value_desc
*
1056 find_value(const char *func
, GLenum pname
, void **p
, union value
*v
)
1058 GET_CURRENT_CONTEXT(ctx
);
1059 struct gl_texture_unit
*unit
;
1061 const struct value_desc
*d
;
1065 /* We index into the table_set[] list of per-API hash tables using the API's
1066 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1067 * value since it's compatible with GLES2 its entry in table_set[] is at the
1070 STATIC_ASSERT(Elements(table_set
) == API_OPENGL_LAST
+ 2);
1071 if (_mesa_is_gles3(ctx
)) {
1072 api
= API_OPENGL_LAST
+ 1;
1074 mask
= Elements(table(api
)) - 1;
1075 hash
= (pname
* prime_factor
);
1077 int idx
= table(api
)[hash
& mask
];
1079 /* If the enum isn't valid, the hash walk ends with index 0,
1080 * pointing to the first entry of values[] which doesn't hold
1081 * any valid enum. */
1082 if (unlikely(idx
== 0)) {
1083 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1084 _mesa_lookup_enum_by_nr(pname
));
1085 return &error_value
;
1089 if (likely(d
->pname
== pname
))
1095 if (unlikely(d
->extra
&& !check_extra(ctx
, func
, d
)))
1096 return &error_value
;
1098 switch (d
->location
) {
1100 *p
= ((char *) ctx
->DrawBuffer
+ d
->offset
);
1103 *p
= ((char *) ctx
+ d
->offset
);
1106 *p
= ((char *) ctx
->Array
.ArrayObj
+ d
->offset
);
1109 unit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1110 *p
= ((char *) unit
+ d
->offset
);
1113 find_custom_value(ctx
, d
, v
);
1121 /* silence warning */
1122 return &error_value
;
1125 static const int transpose
[] = {
1133 _mesa_GetBooleanv(GLenum pname
, GLboolean
*params
)
1135 const struct value_desc
*d
;
1141 d
= find_value("glGetBooleanv", pname
, &p
, &v
);
1146 params
[0] = INT_TO_BOOLEAN(d
->offset
);
1151 params
[3] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[3]);
1154 params
[2] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[2]);
1157 params
[1] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[1]);
1160 params
[0] = FLOAT_TO_BOOLEAN(((GLfloat
*) p
)[0]);
1164 params
[0] = FLOAT_TO_BOOLEAN(((GLdouble
*) p
)[0]);
1168 params
[3] = INT_TO_BOOLEAN(((GLint
*) p
)[3]);
1170 params
[2] = INT_TO_BOOLEAN(((GLint
*) p
)[2]);
1173 params
[1] = INT_TO_BOOLEAN(((GLint
*) p
)[1]);
1176 params
[0] = INT_TO_BOOLEAN(((GLint
*) p
)[0]);
1180 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1181 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1185 params
[0] = INT64_TO_BOOLEAN(((GLint64
*) p
)[0]);
1189 params
[0] = ((GLboolean
*) p
)[0];
1193 m
= *(GLmatrix
**) p
;
1194 for (i
= 0; i
< 16; i
++)
1195 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[i
]);
1199 m
= *(GLmatrix
**) p
;
1200 for (i
= 0; i
< 16; i
++)
1201 params
[i
] = FLOAT_TO_BOOLEAN(m
->m
[transpose
[i
]]);
1212 shift
= d
->type
- TYPE_BIT_0
;
1213 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1219 _mesa_GetFloatv(GLenum pname
, GLfloat
*params
)
1221 const struct value_desc
*d
;
1227 d
= find_value("glGetFloatv", pname
, &p
, &v
);
1232 params
[0] = (GLfloat
) d
->offset
;
1237 params
[3] = ((GLfloat
*) p
)[3];
1240 params
[2] = ((GLfloat
*) p
)[2];
1243 params
[1] = ((GLfloat
*) p
)[1];
1246 params
[0] = ((GLfloat
*) p
)[0];
1250 params
[0] = (GLfloat
) (((GLdouble
*) p
)[0]);
1254 params
[3] = (GLfloat
) (((GLint
*) p
)[3]);
1256 params
[2] = (GLfloat
) (((GLint
*) p
)[2]);
1259 params
[1] = (GLfloat
) (((GLint
*) p
)[1]);
1262 params
[0] = (GLfloat
) (((GLint
*) p
)[0]);
1266 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1267 params
[i
] = INT_TO_FLOAT(v
.value_int_n
.ints
[i
]);
1271 params
[0] = (GLfloat
) (((GLint64
*) p
)[0]);
1275 params
[0] = BOOLEAN_TO_FLOAT(*(GLboolean
*) p
);
1279 m
= *(GLmatrix
**) p
;
1280 for (i
= 0; i
< 16; i
++)
1281 params
[i
] = m
->m
[i
];
1285 m
= *(GLmatrix
**) p
;
1286 for (i
= 0; i
< 16; i
++)
1287 params
[i
] = m
->m
[transpose
[i
]];
1298 shift
= d
->type
- TYPE_BIT_0
;
1299 params
[0] = BOOLEAN_TO_FLOAT((*(GLbitfield
*) p
>> shift
) & 1);
1305 _mesa_GetIntegerv(GLenum pname
, GLint
*params
)
1307 const struct value_desc
*d
;
1313 d
= find_value("glGetIntegerv", pname
, &p
, &v
);
1318 params
[0] = d
->offset
;
1322 params
[3] = IROUND(((GLfloat
*) p
)[3]);
1324 params
[2] = IROUND(((GLfloat
*) p
)[2]);
1326 params
[1] = IROUND(((GLfloat
*) p
)[1]);
1328 params
[0] = IROUND(((GLfloat
*) p
)[0]);
1332 params
[3] = FLOAT_TO_INT(((GLfloat
*) p
)[3]);
1334 params
[2] = FLOAT_TO_INT(((GLfloat
*) p
)[2]);
1336 params
[1] = FLOAT_TO_INT(((GLfloat
*) p
)[1]);
1338 params
[0] = FLOAT_TO_INT(((GLfloat
*) p
)[0]);
1342 params
[0] = FLOAT_TO_INT(((GLdouble
*) p
)[0]);
1346 params
[3] = ((GLint
*) p
)[3];
1348 params
[2] = ((GLint
*) p
)[2];
1351 params
[1] = ((GLint
*) p
)[1];
1354 params
[0] = ((GLint
*) p
)[0];
1358 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1359 params
[i
] = v
.value_int_n
.ints
[i
];
1363 params
[0] = INT64_TO_INT(((GLint64
*) p
)[0]);
1367 params
[0] = BOOLEAN_TO_INT(*(GLboolean
*) p
);
1371 m
= *(GLmatrix
**) p
;
1372 for (i
= 0; i
< 16; i
++)
1373 params
[i
] = FLOAT_TO_INT(m
->m
[i
]);
1377 m
= *(GLmatrix
**) p
;
1378 for (i
= 0; i
< 16; i
++)
1379 params
[i
] = FLOAT_TO_INT(m
->m
[transpose
[i
]]);
1390 shift
= d
->type
- TYPE_BIT_0
;
1391 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1397 _mesa_GetInteger64v(GLenum pname
, GLint64
*params
)
1399 const struct value_desc
*d
;
1405 d
= find_value("glGetInteger64v", pname
, &p
, &v
);
1410 params
[0] = d
->offset
;
1414 params
[3] = IROUND64(((GLfloat
*) p
)[3]);
1416 params
[2] = IROUND64(((GLfloat
*) p
)[2]);
1418 params
[1] = IROUND64(((GLfloat
*) p
)[1]);
1420 params
[0] = IROUND64(((GLfloat
*) p
)[0]);
1424 params
[3] = FLOAT_TO_INT64(((GLfloat
*) p
)[3]);
1426 params
[2] = FLOAT_TO_INT64(((GLfloat
*) p
)[2]);
1428 params
[1] = FLOAT_TO_INT64(((GLfloat
*) p
)[1]);
1430 params
[0] = FLOAT_TO_INT64(((GLfloat
*) p
)[0]);
1434 params
[0] = FLOAT_TO_INT64(((GLdouble
*) p
)[0]);
1438 params
[3] = ((GLint
*) p
)[3];
1440 params
[2] = ((GLint
*) p
)[2];
1443 params
[1] = ((GLint
*) p
)[1];
1446 params
[0] = ((GLint
*) p
)[0];
1450 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1451 params
[i
] = INT_TO_BOOLEAN(v
.value_int_n
.ints
[i
]);
1455 params
[0] = ((GLint64
*) p
)[0];
1459 params
[0] = ((GLboolean
*) p
)[0];
1463 m
= *(GLmatrix
**) p
;
1464 for (i
= 0; i
< 16; i
++)
1465 params
[i
] = FLOAT_TO_INT64(m
->m
[i
]);
1469 m
= *(GLmatrix
**) p
;
1470 for (i
= 0; i
< 16; i
++)
1471 params
[i
] = FLOAT_TO_INT64(m
->m
[transpose
[i
]]);
1482 shift
= d
->type
- TYPE_BIT_0
;
1483 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1489 _mesa_GetDoublev(GLenum pname
, GLdouble
*params
)
1491 const struct value_desc
*d
;
1497 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1502 params
[0] = d
->offset
;
1507 params
[3] = ((GLfloat
*) p
)[3];
1510 params
[2] = ((GLfloat
*) p
)[2];
1513 params
[1] = ((GLfloat
*) p
)[1];
1516 params
[0] = ((GLfloat
*) p
)[0];
1520 params
[0] = ((GLdouble
*) p
)[0];
1524 params
[3] = ((GLint
*) p
)[3];
1526 params
[2] = ((GLint
*) p
)[2];
1529 params
[1] = ((GLint
*) p
)[1];
1532 params
[0] = ((GLint
*) p
)[0];
1536 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1537 params
[i
] = v
.value_int_n
.ints
[i
];
1541 params
[0] = (GLdouble
) (((GLint64
*) p
)[0]);
1545 params
[0] = *(GLboolean
*) p
;
1549 m
= *(GLmatrix
**) p
;
1550 for (i
= 0; i
< 16; i
++)
1551 params
[i
] = m
->m
[i
];
1555 m
= *(GLmatrix
**) p
;
1556 for (i
= 0; i
< 16; i
++)
1557 params
[i
] = m
->m
[transpose
[i
]];
1568 shift
= d
->type
- TYPE_BIT_0
;
1569 params
[0] = (*(GLbitfield
*) p
>> shift
) & 1;
1574 static enum value_type
1575 find_value_indexed(const char *func
, GLenum pname
, GLuint index
, union value
*v
)
1577 GET_CURRENT_CONTEXT(ctx
);
1582 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1584 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1586 v
->value_int
= (ctx
->Color
.BlendEnabled
>> index
) & 1;
1591 case GL_BLEND_SRC_RGB
:
1592 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1594 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1596 v
->value_int
= ctx
->Color
.Blend
[index
].SrcRGB
;
1598 case GL_BLEND_SRC_ALPHA
:
1599 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1601 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1603 v
->value_int
= ctx
->Color
.Blend
[index
].SrcA
;
1607 case GL_BLEND_DST_RGB
:
1608 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1610 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1612 v
->value_int
= ctx
->Color
.Blend
[index
].DstRGB
;
1614 case GL_BLEND_DST_ALPHA
:
1615 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1617 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1619 v
->value_int
= ctx
->Color
.Blend
[index
].DstA
;
1621 case GL_BLEND_EQUATION_RGB
:
1622 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1624 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1626 v
->value_int
= ctx
->Color
.Blend
[index
].EquationRGB
;
1628 case GL_BLEND_EQUATION_ALPHA
:
1629 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1631 if (!ctx
->Extensions
.ARB_draw_buffers_blend
)
1633 v
->value_int
= ctx
->Color
.Blend
[index
].EquationA
;
1636 case GL_COLOR_WRITEMASK
:
1637 if (index
>= ctx
->Const
.MaxDrawBuffers
)
1639 if (!ctx
->Extensions
.EXT_draw_buffers2
)
1641 v
->value_int_4
[0] = ctx
->Color
.ColorMask
[index
][RCOMP
] ? 1 : 0;
1642 v
->value_int_4
[1] = ctx
->Color
.ColorMask
[index
][GCOMP
] ? 1 : 0;
1643 v
->value_int_4
[2] = ctx
->Color
.ColorMask
[index
][BCOMP
] ? 1 : 0;
1644 v
->value_int_4
[3] = ctx
->Color
.ColorMask
[index
][ACOMP
] ? 1 : 0;
1647 case GL_TRANSFORM_FEEDBACK_BUFFER_START
:
1648 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1650 if (!ctx
->Extensions
.EXT_transform_feedback
)
1652 v
->value_int64
= ctx
->TransformFeedback
.CurrentObject
->Offset
[index
];
1655 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE
:
1656 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1658 if (!ctx
->Extensions
.EXT_transform_feedback
)
1661 = ctx
->TransformFeedback
.CurrentObject
->RequestedSize
[index
];
1664 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING
:
1665 if (index
>= ctx
->Const
.MaxTransformFeedbackBuffers
)
1667 if (!ctx
->Extensions
.EXT_transform_feedback
)
1669 v
->value_int
= ctx
->TransformFeedback
.CurrentObject
->BufferNames
[index
];
1672 case GL_UNIFORM_BUFFER_BINDING
:
1673 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1675 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1677 v
->value_int
= ctx
->UniformBufferBindings
[index
].BufferObject
->Name
;
1680 case GL_UNIFORM_BUFFER_START
:
1681 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1683 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1685 v
->value_int
= ctx
->UniformBufferBindings
[index
].Offset
;
1688 case GL_UNIFORM_BUFFER_SIZE
:
1689 if (index
>= ctx
->Const
.MaxUniformBufferBindings
)
1691 if (!ctx
->Extensions
.ARB_uniform_buffer_object
)
1693 v
->value_int
= ctx
->UniformBufferBindings
[index
].Size
;
1696 /* ARB_texture_multisample / GL3.2 */
1697 case GL_SAMPLE_MASK_VALUE
:
1700 if (!ctx
->Extensions
.ARB_texture_multisample
)
1702 v
->value_int
= ctx
->Multisample
.SampleMaskValue
;
1707 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=%s)", func
,
1708 _mesa_lookup_enum_by_nr(pname
));
1709 return TYPE_INVALID
;
1711 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(pname=%s)", func
,
1712 _mesa_lookup_enum_by_nr(pname
));
1713 return TYPE_INVALID
;
1717 _mesa_GetBooleani_v( GLenum pname
, GLuint index
, GLboolean
*params
)
1720 enum value_type type
=
1721 find_value_indexed("glGetBooleani_v", pname
, index
, &v
);
1725 params
[0] = INT_TO_BOOLEAN(v
.value_int
);
1728 params
[0] = INT_TO_BOOLEAN(v
.value_int_4
[0]);
1729 params
[1] = INT_TO_BOOLEAN(v
.value_int_4
[1]);
1730 params
[2] = INT_TO_BOOLEAN(v
.value_int_4
[2]);
1731 params
[3] = INT_TO_BOOLEAN(v
.value_int_4
[3]);
1734 params
[0] = INT64_TO_BOOLEAN(v
.value_int
);
1737 ; /* nothing - GL error was recorded */
1742 _mesa_GetIntegeri_v( GLenum pname
, GLuint index
, GLint
*params
)
1745 enum value_type type
=
1746 find_value_indexed("glGetIntegeri_v", pname
, index
, &v
);
1750 params
[0] = v
.value_int
;
1753 params
[0] = v
.value_int_4
[0];
1754 params
[1] = v
.value_int_4
[1];
1755 params
[2] = v
.value_int_4
[2];
1756 params
[3] = v
.value_int_4
[3];
1759 params
[0] = INT64_TO_INT(v
.value_int
);
1762 ; /* nothing - GL error was recorded */
1767 _mesa_GetInteger64i_v( GLenum pname
, GLuint index
, GLint64
*params
)
1770 enum value_type type
=
1771 find_value_indexed("glGetInteger64i_v", pname
, index
, &v
);
1775 params
[0] = v
.value_int
;
1778 params
[0] = v
.value_int_4
[0];
1779 params
[1] = v
.value_int_4
[1];
1780 params
[2] = v
.value_int_4
[2];
1781 params
[3] = v
.value_int_4
[3];
1784 params
[0] = v
.value_int
;
1787 ; /* nothing - GL error was recorded */
1792 _mesa_GetFixedv(GLenum pname
, GLfixed
*params
)
1794 const struct value_desc
*d
;
1800 d
= find_value("glGetDoublev", pname
, &p
, &v
);
1805 params
[0] = INT_TO_FIXED(d
->offset
);
1810 params
[3] = FLOAT_TO_FIXED(((GLfloat
*) p
)[3]);
1813 params
[2] = FLOAT_TO_FIXED(((GLfloat
*) p
)[2]);
1816 params
[1] = FLOAT_TO_FIXED(((GLfloat
*) p
)[1]);
1819 params
[0] = FLOAT_TO_FIXED(((GLfloat
*) p
)[0]);
1823 params
[0] = FLOAT_TO_FIXED(((GLdouble
*) p
)[0]);
1827 params
[3] = INT_TO_FIXED(((GLint
*) p
)[3]);
1829 params
[2] = INT_TO_FIXED(((GLint
*) p
)[2]);
1832 params
[1] = INT_TO_FIXED(((GLint
*) p
)[1]);
1835 params
[0] = INT_TO_FIXED(((GLint
*) p
)[0]);
1839 for (i
= 0; i
< v
.value_int_n
.n
; i
++)
1840 params
[i
] = INT_TO_FIXED(v
.value_int_n
.ints
[i
]);
1844 params
[0] = ((GLint64
*) p
)[0];
1848 params
[0] = BOOLEAN_TO_FIXED(((GLboolean
*) p
)[0]);
1852 m
= *(GLmatrix
**) p
;
1853 for (i
= 0; i
< 16; i
++)
1854 params
[i
] = FLOAT_TO_FIXED(m
->m
[i
]);
1858 m
= *(GLmatrix
**) p
;
1859 for (i
= 0; i
< 16; i
++)
1860 params
[i
] = FLOAT_TO_FIXED(m
->m
[transpose
[i
]]);
1871 shift
= d
->type
- TYPE_BIT_0
;
1872 params
[0] = BOOLEAN_TO_FIXED((*(GLbitfield
*) p
>> shift
) & 1);